This New Holland 6600O - 4 Cyl Orchard Tractor (1/75-12/81) Parts Manual gives you all the information you need to keep your machine running smoothly. It contains detailed illustrations and step-by-step instructions with the necessary diagrams or pictures to help guide you through the repair and maintenance process. It is compatible with all Windows and Mac versions and can be printed out for easy reference. Get your manual today and save time and money! Learn More